Gas-burner



(No Model.)

J. F. BARKER.

GAS BURNER. No. 434,013. Patented Aug. 12, 1890.

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UNITED? STATES `ATENT OFFICE.

JOHN F. BARKER, OF SPRINGFIELD, IYIASSACHUSETTS.

GAS-BURNER.

SIECIFICATION forming part of Letters Patent No. 434,013, dated August1'2, 1890. Application iiled December 14, 1886. Serial No. 221,496. (Nomodel.)

To all whom it may concern.'

Be it known that I, JOHN F. BARKER, of Springfield, in the county ofHampden and State of Massachusetts, haveinvented certain new and usefulImprovements in Gas-B urners, of which the following is a full, clear,and exact description, whereby any one skilled in the art can make anduse the same.

My invention relates particularly to the class of burners used andadapted to burn gas for heating purposes', and is of the Bunsen type;and my obj ectis to produce a burner to burn air-gas that is of avariable quality, richness, or candle-power.

, My invention consists of a burner having a base, a pillar, amixing-chamber at the base of the pillar, and the peculiar arrangementof the independent and separately adjustable air and gas valves, and inthe combination of such parts with each other, and also with theenlarged jetas more particularly hereinafter described, and pointed outin the claims.

Referring to the drawings, Figure l is a view in central verticalsection of my improved burner. Fig. 2 is a view .of the same incrosssection on plane denoted by line a; of Fig. 1. Fig. 3 is a planview of the burner top or jet.

In the accompanying drawings, the letter a denotes the base of theburner, that is usually of metal cast to shape, with the tubular inlet band an upright steine, onto which is screwed or otherwise adjustablyfastened the lower end of the pillar d. The upper end of the stem c,which is hollow, has a number of openings c lfor the passage of the gas,and between them a tapered or pointed spindle c2, which extends into anopening d in the concave bottom of the pillar when the parts are screwedtogether. The base of this pillar is enlarged so as to form anair-chamber e, and through the walls of this piece are the port-openingse', while arotary collar or sleeve f surrounds the base and is movableon it, so that the openings through this gate may be made to registerwith the openings in the airchamber, or the latter may be closed byturning the sleeve a sufficient distance. The main body of the pillarextends above this chamber for a certain distance and terminates in'that is enlarged to several times the size of the main pillar, and hasa number of outlet-openings through the top of the tip and also throughthe side Walls, the latter being Wit-hin a chamber formed about thesides of the top and opening on about the level of the top of thelatter. base of the pillar upon the stem the valvespindle may be made toopen or close the valve-opening d', that controls the flow of gas intothe mixing-chamber and through the pillar, and when the adjustment .hasbeen made for the desired quantity of gas afurther adjustment of theparts may be made by moving the collar f, so that the' exact quantity ofair necessary to produce either a yellow flame or a green iiame may beallowed to enter the chamber e, and mixing with the gas pass through thepillar to the jet, where it may be ignited.

In theordinary form of Bunsen burners the gas-inlet is of a iixed size,as it is adapted to be used with coal-gas that is always o'f cer= tainstandard richness of about eighteen candlepower; but such a form ofburner is not adapted for use with carbureted air, in which this qualityis very variable. By yadjusting the gas-valve to admit the properquantity of gas in relation to its richness at a given time'A there isdanger of so increasing the velocity as to blow the dame off the top ofthe burner,

,so that with merely this adjustment the burner would be of but littlevalue. By providing means for regulating the supply of air also thedesired kind of iiame may be furnishedat the tip of the burner Withoutits requiring any change in the size of the pillar that would otherwisebe necessary to obtain the same result in the absence of anair-controllin g valve.

By the term independent, as applied to the valves in the followingclaims, I mean to refer to the feature of separate adjustment thatenables the quantity of air alone or the quantity of gas alone Ato becontrolled 4or determined as it iows into the burner.

I claim as my improvement- 1. In a burner, in combination With a basehaving an inlet-opening, a projecting stem adjustable vertically in thebase and terminating in a pointed valve-spindle, the pillarbase havingan inlet-opening for gas located opposite the end of the valve-spindle,the pillar adj ustably mounted on the base and having the enlargedmixing-chamber with ad By turning the n ICO of air, the adjustable gatef,and the burner top or jet sui-mounting the pillar and having adiameter larger than that 0f the pillar and provided with a pluralnumber of outletopenings on the top and sides, all substantially asdescribed.

JOHN F. BARKER.

Witnesses:

GEORGE CosTER, HERBERT A. HOLLAND.

